The most common and most likely answer to this crossword clue is the 6 letter word ARISEN
I've seen this crossword clue in The Guardian
A
R
I
S
E
N
More clues leading to the result ARISEN
- Article about riot appeared
- Begun preparing sarnie
- Up and about when a siren has been set off
- Got up in Paris, enceinte
- Got up in Paris, enlivened
- “Up the Gunners!” ringing around one lost away leg, initially
- Got up; assembled sarnie
- Toasted sarnie popped up
- Section of ‘Star’ is endlessly followed
- Ferrari’s entry, not fully developed
Buddy explains!

The straight part
We know that "Got up" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case got up = arisen.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does ARISEN mean?
ARISEN verb- To come up from a lower to a higher position.
- To come up from one's bed or place of repose; to get up.
- To spring up; to come into action, being, or notice; to become operative, sensible, or visible; to begin to act a part; to present itself.